/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.edu.thu.laud.utils.serde;

import java.nio.ByteBuffer;


/**
 * @author zhuoan
 *
 */
public class BooleanConverter implements IConverter {

	private static final byte TRUE = 1;
	private static final byte FALSE = 0;
	
	@Override
	public Boolean getObject(ByteBuffer buffer, ConverterContext context) {
		if(buffer == null){
			return null;
		}
		
		return buffer.get() == TRUE;
	}

	@Override
	public ByteBuffer writeBytes(Object value, ByteBuffer buffer, ConverterContext context) {
		
		ByteBuffer checked = ConverterContext.check(buffer, 1);
		
		if((Boolean) value){
			checked.put(TRUE);
		}else{
			checked.put(FALSE);
		}
		
		return checked;
		
	}


	

	@Override
	public String getComparatorType() {
		return "BooleanType";
	}

	

}
